Answer:
[tex]y = 2x-16[/tex]
Step-by-step explanation:
Given is an equation as
[tex]y=\frac{-x}{2} +11[/tex]
We are to find a perpendicular line for this line which passes through (4,-8)
The given line has slope as -1/2
Hence perpendicular line will slope as 2.
Since it passes through (4,-8) we can use point slope form
[tex]y-(-8) =2(x-4)\\y +8 =2x-8\\y = 2x-16[/tex]
is the required equation.